Car-wheel.



No. 638,898. Patented Dec. l7, mm

H. C. TAZEWELL.

CAB WHEEL.

(Application filed Mar. 28, 1901.)

(H6 Model.)

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HARRY CLAY TAZEWYELL, OF WVILMINGTON, DELAIVARE.

CAR-WHEEL.

SPECIFICATION formingpart of Letters Patent No. 688,898, dated December 17, 1901. Application filed March 23. 1901. Serial No. 52,578. (No model) To all whom it may concern.-

Be it known that I, HARRY CLAY TAZE- WELL, a citizen of the United States, residing at Wilmington, in the county of Newcastle and State of Delaware, have made certain new and useful Improvements in Oar-Wheels, of which the following is a specification.

My invention is an improvement in carwheels, relating particularly to the construction of the wheel, whereby to provide means for lubricating the same, for securing it upon the axle, and for preventing the ingress of dust or the like between the wheel and the box; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a longitudinal section of a car-wheel in place on an axle, parts being broken away. Fig. 2 is an elevation of the outer end of a car-wheel in place on an axle, parts being broken away. Fig. 3 is a detail View illustrating the means for preventing the accidental offturning of the screws which cooperate with other features in securing the wheel upon the axle. Fig. 4 is a detail View of' one of the sections of the split collar, and Fig. 5 is a sectional view on about line 5 5 of Fig. 1.

The Wheel A has its body portion B provided with an oil-chamber 0, from which ports D lead to the bearing E of the wheel. It will be noticed that these ports are arranged between the outer and inner ends of the oilchamber 0. This is important, as it provides portions between the said oil-ports D and the outer and the inner ends of the oil-chamber in which the oil can settle when the wheels are set on end, thus preventing the wasting of oil when the wheels are in such position. In this connection it will be noticedthat the chamber 0 is closed at its opposite ends, and a plug-filled opening F is provided, by which oil can be supplied as desired. In practice suitable wicks G are provided in the ports D, leading from the oil-chamber C to the spindle-bearing and operate to feed the oil to such bearing, as desired. At its inner end the hub of the wheel is provided Within its bore with a rabbet or groove H, which extends entirely around it and registers with a groove or rab bet I in the box J, which box is also provided with an arm or portion K, which overlies the inner end of the wheel-hub. The grooves H and J form a recess in which is fitted a packing L, usually of felt, and which when wet with oil expands closely and snugly against the axle, thereby excluding all dust or foreign matter from the bearing of the wheel. By thus fitting the packing L in coinciding and communicating grooves the packingis caused to lap the joints between the wheel and the box, and thus operates efficiently to prevent the entrance of dust or the like. The axle M has its spindle N provided near its outer end with an annular groove at O, in which is fitted the two halves or sections P of a split collar, which sections are provided in their circumferential faces with grooves Q, in which project the inner ends of screws R, whose outer ends are provided with the angular heads S, by which they may be turned, and at the base thereof with outwardly-facing shoulders T. The outer end of the wheelhub is formed with a cap which fits over the outer end of the spindle N, and such hub is providedwith suitable threaded openings for the bolts R and adjacent to such openings with the bosses U, which are provided with openings for the split key V, which when inserted, as shown in Figsl, 2, and 3, will overlie the shoulder T of the bolt and prevent said bolt from jolting out of place or being otherwise accidentally removed. As shown in Fig. 3, the space between the bosses U is curved inwardly at W for the passage of the shoulder Tin inserting and removing the bolt when the key V is withdrawn.

By the described construction the wheel is so formed as to prevent the entrance of dust or the like at its outer end, is secured at such end upon the spindle so it can be readily removed when desired, is free to turn upon the spindle, and the devices for holding the wheel on the spindle are so secured as to prevent them from being accidentally withdrawn.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

1. The improvement herein described, consistiu g of the axle having its spindle provided near its outer end with a circumferential groove, the split collar fitted in said groove, and having its sections provided in their circumferential faces with grooves for the fastening-bolts, the boX provided in its outer end with a circular groove or rabbet, the wheel having the inner end of its hub provided with a circular groove or rabbe't registering with that in the box and having its body portion provided with an oil-chamber closed at its outer and inner ends and provided between said ends with ports leading to the bearing whereby the wheel when set on end will be provided with recesses or cavities for holding the oil, such wheel being provided at the outer end of its hub with openings in register with the grooves in the split-collar sections and at the outer ends of said openings with bosses, the bolts fitting in said openings and projecting at their inner ends into the grooves in the split-collar sections and having shoulders at their outer ends, and the keys held to the bosses and overlying the said shoulders, substantially as set forth.

2. The combination of the spindle provided near its outer end with a circumferential groove, the split collar having its sections fitted in the said groove and provided in their circumferential faces with grooves, the Wheel having its hub fitting over said spindle and split sections and provided with openings registering at their inner ends with the grooves in the collar-sections, and provided at their outer ends with bosses having openings for keys, the bolt fitting in the openings in the hub projecting at their inner ends into the grooves in the collar-sections and provided at their outer ends with outwardly-facing portions resting adjacent to the bosses of the wheel-hub, and the keys held in said bosses and arranged to secure the bolts in the hub, substantially as set forth.

3. The combination of the spindle provided near its outer end with a circumferential groove,the collar-sections fitted in said groove and provided in their circumferential faces with grooves, the wheel-hub fitted over said collar-sections and having openings for the securing-bolts and the bolts fitting in said openings and projecting at their inner ends into the grooves in the collar-sections, substantially as set forth.

HARRY CLAY TAZEWELL.

WVitnesses:

THOMAS J. BowEN, J12, MARY CULBRETH. 

